assume cs:code
code segment
start: mov al,8
	   out 70h,al
	   in al,71h
	   
	   mov ah,al
	   mov cl,4
	   shr ah,cl
	   and al,00001111b
	   
	   add ah,30h
	   add al,30h
	   
	   mov bx,0b800h
	   mov es,bx
	   mov byte ptr es:[160*12+40*2],ah
	   mov byte ptr es:[160*12+40*2+2],al
	   
	   mov ax,4c00h
	   int 21h

code ends
end start